Robert Mearns Yerkes

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Chimpanzees;: A laboratory colony, from $88.88	Psychological Examining In The United States Army: Edited By Robert M. Yerkes from $51.95
The New World of Science: Its Development During the War (Classic Reprint) $26.27 from $19.99	The Mental Life of Monkeys and Apes: A Study of Ideational Behavior from $2.99
Chimpanzee Intelligence and its Vocal Expressions from $32.49	The Dancing Mouse: A Study in Animal Behavior from $7.49
Army Mental Tests from $4.10	Outline of a study of the self by Robert M. Yerkes ... and Daniel W. La Rue. 1914 [Leather Bound] from $59.12
A point scale for measuring mental ability / by Robert M. Yerkes James W. Bridges and Rose S. Hardwick. 1915 [Leather Bound] from $63.29	Methods of studying vision in animals by Robert M. Yerkes...and John B. Watson...Thirteen figures... 1911 [Leather Bound] from $54.10